參數(shù)資料
型號： REG1117A-2.5
英文描述： 800mA and 1A Low Dropout Positive Regulator 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable
中文描述： 800mA電流和1A低壓差穩(wěn)壓積極在1.8V，2.5V，工作在2.85V，3.3V和5V和可調
文件頁數(shù)： 4/16頁
文件大小： 264K
代理商： REG1117A-2.5
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SBVS001D OCTOBER 1992 REVISED JULY 2004
www.ti.com
4
ELECTRICAL CHARACTERISTICS
At T
J
= +25
°
C, unless otherwise noted.
REG1117, REG1117A
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
OUTPUT VOLTAGE
REG1117-2.85
See Note 1
REG1117-3.3
See Note 1
REG1117-5
See Note 1
REG1117A-1.8
See Note 1
REG1117A-2.5
See Note 1
REG1117A-5
See Note 1
REFERENCE VOLTAGE
REG1117 (Adjustable)
See Note 1
REG1117A (Adjustable)
See Note 1
LINE REGULATION
REG1117-2.85(1)
REG1117-3.3(1)
REG1117-5(1)
REG1117 (Adjustable)(1)
REG1117A (Adjustable)(1)
REG1117A-1.8(1)
REG1117A-2.5(1)
REG1117A-5.0(1)
LOAD REGULATION
REG1117-2.85(1)
REG1117-3.3(1)
REG1117-5(1)
REG1117 (Adjustable)(1)(2)
REG1117A (Adjustable)(1)(2)
REG1117A-1.8(1)
REG1117A-2.5
REG1117A-5
DROPOUT VOLTAGE(3)
All Models(1)
See Note 1
REG1117 Models(1)
REG1117A
See Note 1
I
O
= 10mA, V
IN
= 4.85V
I
O
= 0 to 800mA, V
IN
= 4.05V to 10V
I
O
= 10mA, V
IN
= 5.3V
I
O
= 0 to 800mA, V
IN
= 4.8V to 10V
I
O
= 10mA, V
IN
= 7V
I
O
= 0 to 800mA, V
IN
= 6.5V to 10V
I
O
= 10mA, V
IN
= 3.8V
I
O
= 0 to 1A, V
IN
= 3.8V to 10V
I
O
= 10mA, V
IN
= 4.5V
I
O
= 0 to 1A, V
IN
= 4.5V to 10V
I
O
= 10mA, V
IN
= 7V
I
O
= 0 to 1A, V
IN
= 7V to 10V
2.820
2.790
3.270
3.240
4.950
4.900
1.782
1.764
2.475
2.450
4.950
4.900
2.85
2.85
3.30
3.30
5.00
5.00
1.8
1.8
2.5
2.5
5.0
5.0
2.880
2.910
3.330
3.360
5.050
5.100
1.818
1.836
2.525
2.550
5.050
5.100
V
V
V
V
V
V
V
V
V
V
V
V
I
O
= 10mA, V
IN
V
O
= 2V
I
O
= 10 to 800mA, V
IN
V
O
= 1.4 to 10V
I
O
= 10mA, V
IN
V
O
= 2V
I
O
= 10mA to 1A, V
IN
V
O
= 1.4 to 10V
1.238
1.225
1.238
1.225
1.250
1.250
1.250
1.250
1.262
1.280
1.262
1.280
V
V
V
V
I
O
= 0, V
IN
= 4.25 to 10V
I
O
= 0, V
IN
= 4.8 to 10V
I
O
= 0, V
IN
= 6.5 to 15V
I
O
= 10mA, V
IN
V
O
=
1.5 to 13.75V
I
O
= 10mA, V
IN
V
O
=
1.5 to 13.75V
I
O
= 0, V
IN
= 3.8V to 10V
I
O
= 0, V
IN
= 4.5V to 10V
I
O
= 0, V
IN
= 7V to 15V
1
2
3
7
7
10
0.4
0.4
7
7
10
mV
mV
mV
%
%
mV
mV
mV
0.1
0.1
1
1
3
I
O
= 0 to 800mA, V
IN
= 4.25V
I
O
= 0 to 800mA, V
IN
= 4.8V
I
O
= 0 to 800mA, V
IN
= 6.5V
I
O
= 10 to 800mA, V
IN
V
O
= 3V
I
O
= 10mA to 1A, V
IN
V
O
=
3V
I
O
= 0 to 1A, V
IN
= 3.8V
I
O
= 0 to 1A, V
IN
= 4.5V
I
O
= 0 to 1A, V
IN
= 7.0V
2
3
3
10
12
15
0.4
0.4
10
10
15
mV
mV
mV
%
%
mV
mV
mV
0.1
0.1
2
2
3
I
O
= 100mA
I
O
= 500mA
I
O
= 800mA
I
O
= 1A
I
O
= 1A
1.00
1.05
1.10
1.2
1.2
1.10
1.15
1.20
1.30
1.55
V
V
V
V
V
(1)Specification applies over the full specified junction temperature range, 0
°
C to +125
°
C.
(2)REG1117 and REG1117A adjustable versions require a minimum load current for
±
3% regulation.
(3)Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.
(4)Percentage change in unloaded output voltage before versus after a 30ms power pulse of IO = 800mA (REG1117 models), IO = 1A (REG1117A),
VIN VO = 1.4V (reading taken 10ms after pulse).
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